The basis of Muslim philosophy and science is the instruction buried in the Quran. At an early date this tradition was enlarged and strengthened by the infiltration into Muslim culture of Greek philosophy and science through the translation of Greek classics by Muslims. The Indian tradition of thought also made its contribution to this intellectual leaven. This book traces the development and interaction of these strands in Muslim thinking. The author is concerned to show both how philosophy and science are related to specifically religious thought, and how they have made distinctive contributions to method and discovery. The impact of secularisation on the Muslim world puts these traditions under considerable strain, and it is interesting to define how far this pressure is a productive and fertile one. The current century has seen a Renaissance of Muslim science and philosophy; this book sets the new achievements clearly against their historical background. First published in 1988.